Tuber cinereum hamartoma

A rare, benign brain tumor

Diagram of the hypothalamus

Location of the hypothalamus in the brain

Tuber cinereum hamartoma is a rare, benign brain tumor located in the hypothalamus. It is composed of disorganized but mature neurons and glial cells. This condition is often associated with gelastic seizures, precocious puberty, and cognitive impairment.

Anatomy and location

The tuber cinereum is a part of the hypothalamus, situated between the mammillary bodies and the optic chiasm. A hamartoma in this region is a non-cancerous growth that can affect the normal functioning of the hypothalamus.

MRI image showing a hypothalamic hamartoma

Symptoms

The most characteristic symptom of a tuber cinereum hamartoma is gelastic seizures, which are seizures that involve sudden bursts of laughter. Other symptoms may include:

• Precocious puberty
• Cognitive impairment
• Behavioral disorders
• Endocrine dysfunction

Diagnosis

Diagnosis of a tuber cinereum hamartoma typically involves imaging studies such as MRI or CT scan to visualize the lesion. Electroencephalography (EEG) may be used to assess seizure activity.

An EEG cap used for monitoring brain activity

Treatment

Treatment options for tuber cinereum hamartoma depend on the symptoms and may include:

• Surgical resection
• Gamma Knife radiosurgery
• Antiepileptic drugs
• Hormonal therapy for endocrine symptoms

Prognosis

The prognosis for individuals with tuber cinereum hamartoma varies. Surgical intervention can be effective in controlling seizures and other symptoms, but the risk of complications must be considered.

Related pages

• Hypothalamus
• Seizure
• Endocrine system

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  Hypothalamic hamartoma

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  EEG cap

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  Tuber cinereum hamartoma